TW...Hi, just a thought, in your local supermarket, do you not have an international aisle? If you do so luvey, you may be able to find British tea like PG Tips or another brand...it's not cheap, but would be cheaper than someone sending from ENgland, postage prices are riddiculous.
We have Stop & Shop here and Shaw's and they both sell PG Tips... if you can't find any, PM me and I'll see what I can do about sending some from here for you...
Good luck with your challenge...and have a happy Labour Day