bad experince

I paid my account using easy pay on the 21 Nov but on the 22 the connection was disconnected. I sent an email at *** only got the ref no nothing more. Today on WhatsApp I've been going back and forth with their service advisor but there is no solution because she/he says I didn't pay I even sent them the proof of payment she requested Bank statement because on the 22 they didn't get the money while my payment was done and successful on the 21 but that didn't help, I'm still with no connection. Their service is the worse and there is no direct line to call them. You don't even know where to go when you have problems because you will wait forever on their service advisors. Worst experience ever