Negligence & Mismanagement of customer accounts

My electricity was cut from the 9th due to failure of allocating payment to my account.

I have reached out to their call centre and was told they could not reconnect electricity.

I have also spoke to IHS as the residence provider who promised to liaise with Ismrt but I still don't have electricity.

Proof of payment was emailed to ********** and their accounts department on the 7th and it has been ignored since then hence I am still in the dark and the house is stinking as the fridge is off.

Can someone point me to the right direction as I am now feeling helpless despite the calls made to IHS properties and Ismrt call centre.

Complex name : The Village, unit 8.