Scar tissue on the ear drum is usually caused by repeated ear infections. The scar tissue can lead to difficulty hearing and eventually ruptured ear drums. Surgery is one means of avoiding progressive hearing loss or ear drum rupture. No patients have reported taking Scar tissue removal (eardrum).
USCIS normally responds to RFE's within 60 days, however they do not have processing times on how long it takes them to respond. It can be longer than that. I would call the USCIS number: 1 (800) 375-5283 and submit a service request, if you do not hear from them soon.
How long generally does it take to get a summons served? I have a court date on 4-22 for a child support court date and my ex is going to be served a summons to appear in court and I know they have 10 days before the court date to get it served but do they normally wait this long, or do they try to do it ASAP?