Incorrect/Not Updated Credit Information

My credit report on Experian is outdated whereas on Compuscan (which Experian acquired over 2 years ago) has the proper information. I contacted my creditors and they said that they have sent the information to all the credit bureaus and would need a credit report to escalate it as to why the information has not been updated on my profile. The fun part is I can only get a credit report at Compuscan and not at Experian and attempting to get hold of this organisation is impossible as they do not answer calls, social media or even emails. This is hurting my chances of getting pre-approved for a home loan.