ok, so landed this week from being back in the UK for 8 days. I have a DTV via the workation access type.
I have a folder with all my paperwork, inc a bank statement taken when I applied showing the funds in my business account needed at the time of my application, copy of my DTV Visa, both old and new passports (one expired so it's tied to the old one).. Also, when I do the THIM, I put purpose of travel: Business... I also have DTV VISA labels on the front of both passports.
The Egates were closed that day, so everyone came through the usual manual process, so big old queue.
I gave the immigration representative my passports. They then asked me for a copy of my DTV Visa and any other paperwork that I had.
She proceeded to review all my flights, bank statements (old ones) the DTV and copy of lease paperwork for the condo, and flipped through my flights...I had £450 in fifties in my wallet just in case.
At that point she closed the folder, stamped my visa and said thank you.
No check on current bank account balance or asking me to prove I had cash in my pocket.