How to pay priority fees from Bangladesh

[Samira143]

Hi
I need some help.
As my husband is applying for my spouse vusa frok Uk, he will send all the supporting documents to straight Sheffield and also he is applying on priority service.
So I need to know how do I pay our priority fees? Can it be paid on online from UK or do I need to take the priority fees of mine along with the application form on the date of biometric to submit at VFS ?
We are just confuse of it. I know we need to pay the application fee in vfs but not sure about the priority fees .
Can anyone please help.
Also is there any Bangladeshi person recently applied for spouse visa from uk?