Worse mistake to choose supersonic

I placed and paid for a order on Wednesday, they ended up installing the fibre yesterday however there was some faults that vuma came and sorted out.

The internet speed that I am on is extremely slow, hence I contacted them to upgrade me.

I paid R419 on Wednesday now because I need to upgrade, instead of making me pay a pro rata they now want me to forfeit the money I already paid and pay R 800 for a new voucher.

This is extremely frustrating I regret going through this company as I always use another isp.

The customer service agent I spoke to was extremely rude and had a fighting spirit instead of helping me Al she said that she can't help me that's the process.

They have false advertising saying that they have good deals but be aware they rob us cause their internet speed is very bad. I am now between options do I lose my job as I'm working from home or do I lose R400.