I held a 2nd class medical and a commercial pilot license. My certificates were revoked due to an alleged DUI which I didn't get convicted of. I have been trying to contact every division in the FAA just to speak with someone about the process of getting my certificates back, however, due to COVID-19 not a soul is in the office nor, apparently, returning phone calls. Any ideas on which direction to go to obtain my certificates? Or possibly a direct number to someone to speak with about the matter?
If your pilot's certificate was definitely revoked then it's gone for good. You'll have to reapply and re-qualify for all your certificates and ratings again, although you have to wait a year first per 14 CFR 61.13(d)(2):
Unless otherwise authorized by the Administrator, a person whose pilot, flight instructor, or ground instructor certificate has been revoked may not apply for any certificate, rating, or authorization for 1 year after the date of revocation.
Certificate revocation is the FAA's 'nuclear option' and they don't do it lightly. Your best option here is to contact AOPA (if you're a member) and/or an aviation lawyer for specific advice.