I received and signed company A offer, while awaiting final interview with company B. So I told B that I received an offer from A but have not signed it and see if they could expedite the interview process - I told them I really wanted to work for them instead of A!
They have now decided to offer me the job, the terms are equally attractive compared to A, but I have decided not to renege on offer A. How should I decline the offer or what excuse should I use - timing issues? The hiring manager will definitely want to know the reason especially after all the trouble they went through to speed up the process. I would definitely be interested in working at company B at a later stage - so I want to end on a good note and perhaps stay in contact.