cell c LTE slow as f

So having a issue here

i got my LTE sim from cell c. with a giga 200 package.

day one i did the speed test got over 20mb download... few hours later died and went to 7mb.

never has it ever been back up again. anyone know if its just me or is this everyones issue. I dont see why i got that speed once and never again. its been months. nobody gets back to me via social media or emails.

A while back i had some one here unrestrict my sim for gaming, but they dont email me back anymore either.
i have full coverage on the site when check address.

someone email me please

rob@opticalnoise.net