It is very rare, but once in a while a merchant might not be able to locate money you have transferred to them. This may be caused by communication errors.
Please contact our Customer Support at help@profee.com if this happens. We can locate your transaction and provide you with the relevant transaction ID to confirm that the merchant actually received the funds. You would then need to contact the merchant website and provide them with this transaction ID, which they can use to locate your funds and credit them to you.