****mers or Incompetency

If I could I would give this company -10, for such horrific service and lack of transparency. I recently purchase a pick n pay voucher from Prepaid24 , and when I tried to use it at pick n pay, I was told that this voucher was invalid. To was shocked and was made to feel like a *****, like I was trying ******* pick n pay , with a voucher that I paid for with my money. I proceeded to contact prepaid24 to try and assure Pnp that I was not trying to **** them, yet I was let down by poor and slow customer service from Prepaid24 agents, who 24hrs later have still not resolved issue till now, Instead they refused to refund my prepaid24 acc, & told to me go back to PnP and try again without so much as full explanation as to what went wrong or which of the two parties was at fault so I can escalate this matter accordingly. Both Pick n pay and Prepaid24 must just shelve this service until these vouchers are able to validated, I shouldn't be waiting 40min just to verify a voucher I bought with my hard earned money and Prepaid24 must give better assurance by sending confirmation that a transactional purchase has been made to the vendor in question (PnP) Instead of a stupid email with only the voucher number, In fact I should invoice the both of these companies for having to come up with solutions to rectify their *********** business practices.