Take the old one with you and the money with the form
They will take the old passport look it over and give it back to you then they will look over the passport form you have filled in you will have to pay them now and then wait for another appointment to get the new passport, they will then take the old passport off you and cut a corner of the passport and then you will receive a form from them for the thai immigration office, you will also need a form from the thai immigration office to fill in
So you will need 2 forms to fill
You will need two copies of your passport one for the old and one for the new passport
Now be warned that they may ask you for your bank books and then a full bank statement for the year that happened to me I have a retirement visa so be careful
It's much easier for you to come over to do the retirement visa here in Thailand but you will need a bank account and the money in the bank account in your name
*****
0thb
Get a 60 day visa from the embassy in England then you can have some more time to sort it out