Post Office online saver accounts.

[realdeals]

I have one already but not used it yet. My question please to those of you who have used these is: Has anyone got experience of using multiple accounts of these? Is there a known safe limit to number that can be opened? say 4 or 5? You need to attach a bank account to the online saver in order to transfer funds out for withdrawal, can you add multiple savers to the same nominated bank account or do they need to be different bank accounts per saver?

Thanks in advance.