Bad customer service

I went to Jet eloff to pay my account on the 30th January n unfortunately the cashier paid the wrong acc as she was busy charting with other staff member,after receiving my statement on Feb I noticed that my account was not paid.i foned account departments an I was told to go to the store I paid at.on the 27 Feb I went to Jet eloff n they said dey r unable to reverse the payment n they logged a call to head office.when i make a follow up I was told that they r still busy with it.On the 24th Feb I went to eloff again to make follow up n I was told that head office is already on lockdown.on level 4 i foned their acc department n I was told to fone remittance department,that remittance department told me to go to the store to query that.on de 21 may I went to eloff again n they logged a call again n till today there's no feedback from head office or the lady from eloff(Monti).i don't know how much I've already spend to fone n travel to eloff just for payment reversal.

Another thing was we received SMS from them during level 5 of lockdown saying if we pay our accounts we will received vouchers for checker the latest was the 31 of may an no vouchers or any communication from them.