In Feb 2019 : A couple (Contracting) attended visa interview on Feb 26th 2019 without client letter, VO mandatorily asked for client letter (though they had other documents), They tried to get email response or some sort of communication from client. But client did not respond to US Consulate query due to their strict policy of no client letter to contractors. That couple took 1 time visa waiver after 2 or 3 weeks & Entered into USA & went back to India to attend visa interview again.
On Jan 15th 2019 : One guy attended for F1 visa renewal, he joined in Day 1 CPT University (Cumberlands) in Phd & working Full Time, Visa officer denied the visa. we recommend Day 1 CPT university guys not to attend in mexico. If you are planning to attend for F1 visa renewal, make sure you are attending a good university.
In 2018 : one guy scheduled Visa interview for him + his family in India in 2015, his family attended Visa interview in India in 2015 and he could not attend due to some work, his family got approved where as his Visa got rejected as he did not attend Visa interview in 2015 in India. When he attended visa interview in matamoros, VO asked this guy whether he know that his previous Visa got denied (this guy has no clue), VO officer stated that as reason and denied Visa and asked him to go and attend Visa interview in India, he took One time Visa waiver (I-193 Form, costs you 585$) at POE (Don’t worry about 1 time visa waiver now, we will guide you incase if you land in any denial situation., Most of the cases its POE officers final decision to give you 1 time Visa waiver or not, you can pay one time Visa waiver fee only if its granted by POE officer, so far all below denial folks got that) and came back to US and flew back to India and got successful stamping done & came back to USA