Appointment Booking

[Sahib]

Apologies, i previously posted this under wrong section.

I want to book PEO appointment for ILR under T1(G) category at Glasgow on/around 14th April, currently there is no appointments at Glasgow at this date. I am thinking to book appointment at next available PEO and then re-schedule when i see appointment at Glasgow.

Can someone kidnly advise;
1- What time new appointments are released?
2- Is there any issues with booking appointment at Glasgow PEO?
3- Is it possible to re-schedule appointment?
4- How will the payment confirmation work? If i book & pay at other PEO and re-schedule at Glasogw, payment will be made against centre i will book appointment so how will I prove that payment for Glasgow centre is paid when i re-schedule?
5- The fees are going to increase from 6th April and there is no option to pick new fees for appointments to book on/after 6th April. How will i pay the difference between old & new fees if i book appointment before 6th April?

[Sahib]

anyone please, would appreciate help.