Not a problem at all.
We are happy to invest in your product along with other investors. The more people trust / invest in your product the greater the trustworthy / reliable your product is.
Convertible notes are financial instruments used by seed investors in order to delay your company valuation for a next round or a milestone. Convertible notes means that the outstanding amount is automatically converted into equity (at the next valuation or next milestone(. To compensate the angel investor for the additional risk of the initial round, convertible notes can have additional clauses as CAPS or DISCOUNTS.