Prolonged store holiday

I have to put my store on holiday for a prolonged period as I'm moving house . As it has not enough space I need to build a storage unit before re-opening my store. It may be 3-4 months before I can sell again. I plan to keep my store open (ie keep paying monthly fees) but will have no listings visible.

I'm wondering how long you can be 'offline' before eBay treat you like a new seller (and impose listing limitations & the 21 day funds hold).

Do you think there would there be any point in premptively calling eBay to explain my situation (or would telling my cat get the same result in the long run?)

Thanks