The_Unbeliever
Honorary Master
SIM cards are too cheap to replace. At around R2 per SIM card, it's not going to solve the problem, we just create another problem: When that SIM card is marked as spammer, it's disposed of and replaced. Then when spammer SIM card is not used within a certain period of time, the cell companies recycle the number ... then some poor sod later gets the number and is labeled a spammer even before he's made his first call, and web-based services etc still have that number historically listed as bad.
The spam flag can also be reset when the number is recycled.
And SIM cards was in the region of R0.50c the last time I checked in PnP...