I wished they could have done better on their side as they are sitting with a proof that I paid them

My name is Elizabeth i've been using Vox fibre for a long time now with no problem. Paying them with the same account every month. Apparently my account has been suspended due no payment which I did pay. I have sent several proof of payment to them, but simply because they can't retrieve or see the payment on their side they have decided to cut off my line regardless the several proof of payment i've sent to them. Im so dissapointed in this kind of service from vox. According to my opinion they have *****ed me because im sitting with no Connectivity whereas I dont owe them.