I'm not aware of any general peering problems with Mweb, but best if we can see an example of what you're seeing from your side. If you've got some IP's, we can also test from our side.
Pinging mweb.co.za [196.2.63.110] with 32 bytes of dat
Reply from 196.2.63.110: bytes=32 time=14ms TTL=116
Reply from 196.2.63.110: bytes=32 time=17ms TTL=116
Reply from 196.2.63.110: bytes=32 time=18ms TTL=116
Reply from 196.2.63.110: bytes=32 time=14ms TTL=116
Reply from 196.2.63.110: bytes=32 time=18ms TTL=116
Request timed out.
Reply from 196.2.63.110: bytes=32 time=19ms TTL=116
Reply from 196.2.63.110: bytes=32 time=19ms TTL=116
Reply from 196.2.63.110: bytes=32 time=14ms TTL=116
Reply from 196.2.63.110: bytes=32 time=12ms TTL=116
Reply from 196.2.63.110: bytes=32 time=12ms TTL=116
Reply from 196.2.63.110: bytes=32 time=13ms TTL=116
Reply from 196.2.63.110: bytes=32 time=188ms TTL=116
Reply from 196.2.63.110: bytes=32 time=18ms TTL=116
Reply from 196.2.63.110: bytes=32 time=17ms TTL=116
Reply from 196.2.63.110: bytes=32 time=16ms TTL=116
Reply from 196.2.63.110: bytes=32 time=17ms TTL=116
Reply from 196.2.63.110: bytes=32 time=16ms TTL=116
Reply from 196.2.63.110: bytes=32 time=13ms TTL=116
Reply from 196.2.63.110: bytes=32 time=16ms TTL=116
Reply from 196.2.63.110: bytes=32 time=16ms TTL=116
Reply from 196.2.63.110: bytes=32 time=18ms TTL=116
Reply from 196.2.63.110: bytes=32 time=19ms TTL=116
Reply from 196.2.63.110: bytes=32 time=13ms TTL=116
Tracing route to mweb.co.za [196.2.63.110]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms login.router [192.168.0.1]
2 8 ms 8 ms 8 ms 105-236-10-129-esr-lo.mtnbusiness.co.za [105.236
.10.129]
3 10 ms 10 ms 11 ms ipc-recieve-tb-2a.mtnbusiness.net [41.181.54.86]
4 10 ms 10 ms 10 ms tb-dca-2.za--qux-c.za.mtnbusiness.net [41.181.19
8.188]
5 11 ms 11 ms 11 ms unc-cpt-1.mtnns.net [196.44.18.8]
6 12 ms 11 ms 11 ms 196.44.31.106
7 10 ms 10 ms 10 ms nl-ha-2.za--rb-cr-1.za-a.mtnns.net [196.44.0.121
]
8 11 ms 12 ms 13 ms 196-28-178-141.adsl.mweb.co.za [196.28.178.141]
9 17 ms 15 ms 14 ms tengig-0-0-0-1-cpt-p-1.mweb.co.za [197.84.7.1]
10 12 ms 11 ms 12 ms vl-11-cpt-hscore-1.mweb.co.za [197.84.5.238]
11 33 ms 19 ms 21 ms 196.28.178.66
12 13 ms 12 ms 12 ms cte-core-sw2.vwol.net [196.41.144.35]
13 13 ms 12 ms 13 ms mweb.co.za [196.2.63.110]
Pinging 197.85.190.43 with 32 bytes of data
Reply from 197.85.190.43: bytes=32 time=13ms TTL=51
Reply from 197.85.190.43: bytes=32 time=13ms TTL=51
Reply from 197.85.190.43: bytes=32 time=16ms TTL=51
Reply from 197.85.190.43: bytes=32 time=12ms TTL=51
Reply from 197.85.190.43: bytes=32 time=15ms TTL=51
Reply from 197.85.190.43: bytes=32 time=14ms TTL=51
Reply from 197.85.190.43: bytes=32 time=15ms TTL=51
Reply from 197.85.190.43: bytes=32 time=14ms TTL=51
Reply from 197.85.190.43: bytes=32 time=19ms TTL=51
Reply from 197.85.190.43: bytes=32 time=14ms TTL=51
Reply from 197.85.190.43: bytes=32 time=19ms TTL=51
Reply from 197.85.190.43: bytes=32 time=16ms TTL=51
Reply from 197.85.190.43: bytes=32 time=16ms TTL=51
Reply from 197.85.190.43: bytes=32 time=14ms TTL=51
Reply from 197.85.190.43: bytes=32 time=14ms TTL=51
Reply from 197.85.190.43: bytes=32 time=17ms TTL=51
Reply from 197.85.190.43: bytes=32 time=18ms TTL=51
Reply from 197.85.190.43: bytes=32 time=18ms TTL=51
Reply from 197.85.190.43: bytes=32 time=14ms TTL=51
Reply from 197.85.190.43: bytes=32 time=16ms TTL=51
Reply from 197.85.190.43: bytes=32 time=18ms TTL=51
Reply from 197.85.190.43: bytes=32 time=13ms TTL=51
Reply from 197.85.190.43: bytes=32 time=16ms TTL=51
Reply from 197.85.190.43: bytes=32 time=19ms TTL=51
Tracing route to intoxicated.co.za [197.85.190.43]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms login.router [192.168.0.1]
2 9 ms 8 ms 8 ms 105-236-10-129-esr-lo.mtnbusiness.co.za [105.236
.10.129]
3 11 ms 10 ms 9 ms 41.181.51.182
4 19 ms 35 ms 10 ms tb-dca-2.za--qux-c.za.mtnbusiness.net [41.181.19
8.188]
5 11 ms 11 ms 11 ms unc-cpt-1.mtnns.net [196.44.18.8]
6 12 ms 11 ms 18 ms 196.44.31.106
7 10 ms 10 ms 10 ms nl-ha-2.za--rb-cr-1.za-a.mtnns.net [196.44.0.121
]
8 15 ms 13 ms 13 ms 196-28-178-141.adsl.mweb.co.za [196.28.178.141]
9 15 ms 13 ms 14 ms tengig-0-7-0-3-cpt-p-2.mweb.co.za [197.84.7.2]
10 19 ms 17 ms 18 ms vl-12-cpt-hscore-2.mweb.co.za [197.84.5.254]
11 16 ms 16 ms 17 ms vp-02-14.bb.ctn.c27.za.net [196.28.178.70]
12 14 ms 16 ms 17 ms 197-85-139-78.cpt.mweb.co.za [197.85.139.78]
13 13 ms 14 ms 15 ms intoxicated.co.za [197.85.190.43]
Trace complete.