If it were I - I would do a little more research - serial numbers do matter.

And from that link - I'd also read the nearly small print.

In the case of mass printed banknotes e.g. Polymer banknotes, reproductions of banknotes in visual form including serial numbers are only facsimiles and not the serial number you may receive.  This includes all uncirculated banknotes, best described as rate and available.

Some are worth more than others - of course.