7520 Dell MSATA Daughter Board

Before I ordered the laptop I checked with a sales representative over the phone if the laptop would support an MSATA drive in future and was advised it did. Following this I ordered N0015S19 last night. After this I began looking up MSATA drive installation in the 7520 and find posts on the internet suggesting it may be supported depending on the daughterboard, so I contacted the Dell Sales live chat team who again advised me MSATA is compatible however I was not very convinced by them and subsequently spoke to customer services and then technical support who again were both unsure if the MSATA daughterboard is present, with some suggesting to cancel the order and speak to sales, however sales seem to be clueless about my enquiry.

I then got bounced around departments and am currently waiting for a manager to call back.

I am very disappointed with the lack of clarity from Dell.

Is there anyway to check if the board is present?

If it is not present could it be installed before I receive the order?

Or could an engineer install it post receiving the laptop?

I have also spoken to Dell Parts who advise the part N7JHH would cost £43, which is a large amount for something which I was led to believe would be included.