Reconnetion

I have never experienced such bad service in my life, I'm a vumatel client ISP is supersonic, I made a payment on the 4th of March they said the payment does not reflect on their portal they have escalated with vuma and it will take 24 to 72 hours it's now over 72 hours. I have been talking to them since the 4th still no one is assisting. Tried again today they don't respond on whatsapp. Tried contacting vumatel they said supersonic billing need to sort this issue out. I don't know what to do now cause it seems like no one is willing to help. I'm so disappointed and angry.