Deposit period on ISA moving to new year's allowance

tfboy

I just phoned Coventry for their 2.25% ISA asking about the ability to deposit additional funds into the new year, and the lady said I can only do that in this year.

However, reading their "Additional information", it states:

Your initial deposit must be made within 10 calendar days of opening this account. You can make additional deposits while the account is open to new investors or for 7 calendar days after your initial deposit, whichever is longer.

I understand "open to new investors" means effectively this tax year as it will be closed for new openings at the end of this FY.
However, the "for 7 calendar days" suggests this will be in the next FY if I open it within 7 days (say 1st or 2nd of April).
If I do that, would it mean that come 6th April, I would have access to another £15k (or rather £15,240) allowance?

It's a bit of a grey area in their wording. I might just call them back but what do you think?