Thanks for re-submit this case in the correct forums.
We appreciate your effort. We will check with internal team about yours concerned.
Will come back to you ASAP.
Intel Customer Support
Please cross check with the supplier that you have bought EPCQ64 devices. If you have purchased the devices from the authorize distributor or supplier, then those devices are authentic with the correct MPN : EPCQ64ASI16N.
Otherwise, Intel (Altera) do not ensure the device quality and do not provide the further service. Here is solution published for your reference: