I found out that if you are renewing a domain name not all the coupons work. So here are promo codes that do work.

---
Renew a Domain
---
<b>UKTop10</b>: 30% off domains


---
New Domain
---
<b>UKTop10</b>: 30% off domains   (this code has been tested to work on both


---
up to 25% Off Entire Order (works on hosting too for a big discount)
---
<b>UKTop251</b> : 25% off order of $90 or more
<b>UKTop9</b> : 20% Off Orders over $50 dollars
<b>UKTop8</b> : 10% off anything

---
SSL
---
<b>UKTopSSL</b> : $12.99 SSL Certificates