What is the difference between Correspondence Address Vs Residential (home) Address?

Most organisations will accept a correspondence address but if they require your actual residential address, no virtual address service can offer this.

What is the difference between a residential (home) address and a correspondence address?

UK Postbox addresses are correspondence addresses, not residential addresses. The difference is a residential address is where you officially live for a minimum of 183 days of the year and can prove residency there, a correspondence address is where you send and receive all mail items.

We have no restriction on how the address is used, it's 100% whether the organisation accepts.