Credit Score Not updating after paying above and beyond the Monthly Premium

Normally I get great service but we've paid in extra money in the account to settle and balance the credit to the full amount available (in other words we don't owe MRP anything). Were working on building our credit score and after a month and a half the additional money still isn't reflecting on multiple credit score facilities. Please can someone update this with the Credit Score facilities. We wanted to do it early so it would reflect when we apply for a loan but now I don't know if there's enough time.