I agree, transfer spending money via Wise is best and pay via Debit. Superrich in the city offers better rates than many but the airport not much difference.
Some embassies require the business registration of the company you work for. I had to give it applying as freelancer.It is the legal registration of your company, your HR Dept should know. You can even probably look it up online
The one month membership approval was easy to get last year. Now 6mths minimum plus demonstrate your long term need for the DTV to avoid rejection or given a 6 month METV.