Pathetic service from vodacom fiber a 40meg line that buffers

Good day,

I have recently upgraded from a 20 Meg line to a 40 Meg line and it is not running properly Im getting allot of buffering and lagging when I play online games.

I never had these issues when I had the 20meg line or the 10meg line the reason for the upgrade was to get more data before being throttled however the upgrade is worse then the initial line speed.

Service request was logged and since closed

I don't believe that the problem is the speed as it shows a 40meg up and down there is allot of jitter on the line.

Please can someone assist with this as I'm paying more for something that's not working.

They just keep advising me to send a speed test which I have already done. & log a new service request, instead of finding out what the real issue is and fixing it.

And to cancel a service that's not working is a month's notice. Pathetic service

Please kindly advise Jonathan