1. Report the business as possibly selling fake goods (and/or check whether that business is an authorised retailer) here:
http://www.timberlandonline.co.uk/en/cs_counterfeit.html
2. Assuming that the seller is in the UK, send a formal written demand for compensation by recorded delivery, along the following lines:
"[Your name & address]
[Date]
To the Company Secretary, [full name and address of company]
DEMAND FOR PAYMENT:
On [date of order] I purchased a pair of Timberland shoes from your website for the sum of [price of boots plus postage], including carriage. Within two weeks of receiving them it became apparent that the shoes were NOT FIT FOR PURPOSE as the soles had worn through and the stitching was becoming loose. I therefore DEMAND full compensation under the rights granted to me by the Sale of Goods Act 1979 and the Supply of Goods and Services Act 1982.
TAKE NOTICE that, if the aforementioned sum is not paid to me within 14 days of receipt of this letter I will commence legal proceedings via H M Courts and Tribunals online service.
Yours
[Signature & printed name]"
3. If you don't receive the money, commence your claim here:
https://www.moneyclaim.gov.uk/web/mcol/welcome