MTN Centurion store appalling customer assistance with my WIFI

MTN Centurion store has left the most unpleasant taste in my mouth.

I went to their store as my WIFI is giving me connectivity issues since Sunday and after what they told me about having to bring in my WIFI to them for repairs if it continues to disconnect and connect (that time I use it to remotely work from home).

I pay MTN every month for the past 'I lost count years' and when I asked the consultant lady if it does continue to give me issues and the coverage people can't assist me, is it possible to then loan me a WIFI so long as I'll have paid my monthly bill to use the WIFI.

The lady responded that they won't loan me any WIFI. MTN, your WIFI that I pay for monthly is giving connectivity issues all of a sudden, I must use my time being productive chasing the financial year end, running around to provide me with a service I pay you for.

It still continues to give me issues even now as we speak so what must I do?

I know my treating customers fairly rights as a consumer ( who pays) and the disappointing feedback and appauling assistance I received from your Centurion store has made me a very irate customer.

Can someone come back to me on how we'll resolve this WIFI issue.