What are the options that you tried? There are several variants to choose from. A few are:
It would mean a lot to me.
I would be much obliged if.
I would be indebted to you.
I'd appreciate it if.
I would be grateful to you.
Hope this helps.
Since it’s necessarily hierarchical, I don’t think it’s fair to say that the relation is symmetric, even if there is only one part, and traditionally the whole only comprises the parts. However, saying a whole “is comprised of” its parts, suggesting that the parts instead comprise the whole, is common enough in usage today that many dictionaries consider it ...
a whale – probably borrowed from the financial industry, meaning a big investor.
a bear – specifically referenced in How to Marry a Millionaire (1953) in the context of 3 gold diggers setting a 'bear trap', and only needing to trap 1 bear.