Double deducted on electricity purchase on app.

Be careful bhying electricity on the Capitec app, I got double charged. First what happened was when buying R200 it immediately refunded but got the token. A week after it deducted which is normal but thereafter another week+ got deducted again. When contacting customer support they just tell me contact the municipality. Why am I suppose to contact them for a fault that was originally on Capitecs side? R200 might not be the most money but what if someone bought a months electricity and this happened to them? Would obviously want my money back but mostly a warning to anyone buying electricity on the app.