Vodacom badd contract service

Goodday this is Isaac i would like to share my dismay in / with vodacom at the vodacom George Mall ive got this contract with them / data contract witch im paying for a wopping 851 rands for 20 gigs day and 20 gigs nite witch i engage with them november of 2020 initially ive opted for the 5 then 10 gigs and afterwards the 20 gigs ive ive been informed that the 10 gigs were loaded after with ive as previously stated opted for the 20 gigs thus ive paid a penalty of 1000 rands +odd and still no vhanges ive gone in ceveral times and spoke to Vernight manager at vodacom mall witch he said hell sort it out .... But still to this day reflect stil 851 so im done ive given them ample time to fix this matter and paid penalties ... So please can we resolve this