If I claim HSA contributions for the previous tax year (before April 15 of the current year), does my bank/trustee have to file a form for my contributions?

I just opened an HSA in February of this year (and was eligible for all of this year and last year). 

I personally made contributions, using online banking, before April 15th that I claimed using Form 8889 when filing my taxes.

I realized that I did not specifically tell my HSA bank to apply the contributions to the prior tax year.

How can I remedy this?