Stephi_t

Where asked for physical address on the application I wrote it in. But when asked for mailing address I wrote in our P.O. Box.
They tried sending things to our physical address and it was always undeliverable so I had to call up and make sure that they would only send things to our P.O. Box. :/

I've recently received an RFE that read the following:

"Please provide the physical address of your residence. If it is impossible for you to receive mail at your physical residence, you may also provide an explanation and request, along with the address of your physical residence requesting USCIS to use an alternative mailing address such as a PO Box or other mailing address."

You only receive mail to physical addresses in my town if its special delivery, eg FedEx, UPS etc

Should I just type up a letter saying this? or do I need to provide evidence, if so how do I go about this? I'm not really sure what I would even provide. I just find it strange seeing as my RFE's arrived to my P.O. Box.

ANY help would be so appreciated. I'm just not sure how to go about responding.
Thank you.