Has Anyone Else Had a Difficult Time Getting Unit Visits?

[HelpWithAFOQT]

I made a thread a while ago about advice for what to do during a unit visit. Sadly that visit ended up being cancelled due to Delta Variant. I've tried calling the unit back since but no luck. I've been calling several heavy units all across the country, mostly focused on areas I want to live. But it seems that every single one does not allow visits. Either due to delta variant or they say they get too many applicants/visit request they can't have 100+ people come and visit. Or the more common one, the scheduler gives me the number for an officer and their phone always goes straight to voicemail with the voicemail box being full.

Has anyone else had any luck?