A company forced an employee to sign a cheque as a guarantor. What to do?

Dear sir/madam,

My company (Dubai mainland) forcefully made me sign as a guarantor in a cheque bounce case without telling me anything. Dubai Court has issued a travel ban because of this and now I cannot travel.

I am not the owner nor the signatory of the cheque.

Please tell me whether the guarantor can be changed to another person. If yes, what is the procedure? And how much will it take to relieve me from this?