Misrepresentation of the employee designation in his employment visa

Dear Sir/ Madam,

In my offer letter, the designation is Accounts Manager; however, since I have not attested degree certificates the employer promised to give me Archive Clerk Visa. They took my thumb impression and signature on blank paper and later they issued me a Messenger Profession Visa.

When I inquired about the same and refused to accept the Messenger Visa, they are blaming me that I agreed to this Messenger Visa and asked me to pay the visa costs and leave.

I sent the resignation and agreed to pay the visa cost, but the visa cost is double what they have quoted.

Note: the visa is not stamped on my passport. Will I get any ban from MOL, if the visa is cancelled?

Kindly advise...

Thanks in advance