When I got a hosting plan from thisismyempire.com they sent me a bunch of discount coupons for most of their other services. The terms state that the coupons can expire at any time, the coupons are unlimited and can be used by anyone. You can even use codes more than once.

Here are the details I received with the codes.

Online Retail Shop

Discount coupon code gives you:
Free Setup – Worth £49.99
50% off 1st month
These codes also give you the plans on a 1 month contract and not the stated contract periods. You can contact their support team if you have any questions.

3 plans from £6.99 per month.
Add on’s available on most plans.
Choice of FREE Templates

Full details here

Coupon codes:
Freelance Plan – hqwomag8tb25y1
Silver Plan - hqwomag8tb25y2
Gold Plan - hqwomag8tb25y3