Amex Prepaid Card Complaint

Amex Prepaid card department,

General purpose card Managing, opening, or closing account New Jersey

I was issued a refund for some gifts i recieved as a house warming gift on -/-/2016 onto my temporary american express serve card ending in - the merchant released the funds two days later and - has refused to realease the funds back to me it is now - - and i have yet to have access to my funds i was promised a resolution by - - th and still nothing! I would like to expell all my funds and close this account