A UK company with foreign director and $150k monthly for a new banking relationship is high risk in banking terms. You will get problems everywhere you go. Even after you open an account you will get problems down the line...believe me. $1.8m a year in flow is high risk to a bank and that's even if you are selling soft fluffy bunnies to children or hotdogs to pensioners your profile will put them off.
Best bet is to use several EMI's and break up the volumes. I know this sounds like 'structuring' in financial terms but it will help you in long term to keep the account from being frozen.
it might be ok if you can explain such turnover and UBO has good background
some banks will not accept you if have turnover less then 100 k EUR per month
as for me, I do not feel myself OK with EMIs, because of posts about issues within Leupay
and after Paysera has scammed me for 1 000 GBP
Since when did UK banks every listen to explanations....lol...