Many Embassies not issuing the Letter anymore and have informed Immigration, and I wouldn't change the PP Number anywhere till it is really necessary. If you have to go to a Bank just take your old Passport with you.
Better to ban smoking everywhere. Can remember the times all Bars and Restaurants are full of smoke and they have given a damm on non smokers. No it's time for revenge.
I just have replaced my Huawei Inverter and have now 2 x Deye 10K Hybrid and for now 10 kw ESS as back up, next week I get additional 20 kw storage installed. For the old Huawei I have got 35.000 THB as credit on my total installation of Inverters, 20 new Panels 575W and ESS.
It's pending on, what you want to do with your VPN. I use VPN to watch Movies from my Home Country which are normally have Geo blocking, Online Banking etc.