Cartridge World would be my first choice. They have very high QA standards. I'm not sure that you will get the same quality from non dedicated refill solutions like Walgreens.
A few more things to try:
1. Restart your browser.
2. Try a different browser.
3. Clear your internet history including cookies.
4. Restart your computer.
5. Yell your favorite curse words at it.
Diovan HCT is Diovan plus a diuretic. The diuretic could be causing his dizziness. I take several meds for HBP and have similar dizziness problems when standing up. I just try to take it slow and easy.