Poor service!!

After paying for a voucher I received WhatsApp communication saying that they are changing payment method as ot the 1st of July. The day I made my payment.. The then asked for proof of payment and shortly after sent a voucher . however as many times before - something is wrong with it. This time for the wrong meter.. Since then they are not communicating thru any of their channels. Doesn't look like they are even operating. Poor service and taking money without providing it's worth seems like theft to me . Anyway, still waiting for something to be done.