On my Excess inventory it says “estimated storage fee over £2k” , will I be charged this amount ?
I don’t know for certain, but I imagine you will be, if you do nothing about it.
No, at least you shouldn’t. The estimate is based on:
" What is the estimated total storage cost?
The estimated costs that you will incur if you take no action to help sell through or remove your inventory. This includes Storage fees, including any Long-Term Storage Fees, and the holding cost of capital, if applicable."
So if your sales don’t improve and you take no other action then that is what Amazon are estimating the cost to be.
Edit - to point made in the post above, if you are talking about having exceeded your storage space, then that is something that needs resolving immediately.