Poor service

How do you deal with a company that tells you one thing but does differently and the turns around and makes it you problem Using my card I been filling fuel there forever then one day stopped working When I went in to the shop the told me my card if faulty and provided me with a new card I been using it forever racked up a nice amount in rewards Then when I went to use the card I was now told it’s not registered to me and can’t With me asking them why when they issued me the card how is it that is now not on my name they all give me the I don’t know but when I show them I been filling fuel since day one how can it be registered to someone else . Again when I ask but they control everything and we don’t have control of this then how can the penalize me for there bad service issue me the incorrect car again get the shoulders up I don’t know They now have agreed they can see all the transactions from me but can help I do believe this is ***** and a ploy to take the rewards for themselves Calling the call centre more the 20 times and trying with them to resolve we just go nowhere I would ward everyone to use this