They don't update after paying even if they get the instructions to update

<p>i had a contract with cell c in 2012 and another one in 2014, 2 off this contracts was paid up in 2015 and i also got a paid up letter from cell c just to find out this year that both the accounts was not apdated paid on XDS credit bureau, worst of all i had another contract lastyear and i paid it up again lastyear october but in all with all the bureau it was not updated then it was updated after i did a follow up 2 weeks from now. Today when i was checking my report on XDS it was reflecting the last cell c contract i had again showning it was on errears, i don't know if it is cell c or xds but now i can not had a credit because of this xds cell c issues. Please help me fix this problems.</p>