LOL..., while I have your attention a few questions.
The B525 router, I see there are 2 models:
B525s-23a: Bands 1/3/7/8/20/32/38
B525s-65a: Bands 1/3/4/5/7/8/20/19/26/28/32/38/40/41
1. Are they both in this country and we need to watch out for the 65a ?
2. If I got a 525s-65a, would my download speeds increase to a point that warrants the purchase of one of these routers ?
As far as I know the -23a is not sold locally. Telkom is the only provider that brings in the B525s-65a. It is available at stores like takealot but all the -65a version unless something has changed but I doubt.
I can't see what band you are on. If you are on band 40 and getting 89Mbps then the chances are very good that you might get more on LTE-A if you are on a "full" tower and not one of those mini towers. Those small mini green towers usually maxes out on 100Mbps even on 4G+

