At some point you're likely to be dissatisfied with a product or service and with cleaning something can easily go wrong, which is true whether you've used a professional or cleaned it yourself. Assuming that you've used a professional then you should and have every right to complain if something's gone wrong or not come out as you expected it to be after cleaning.

Here's a 10 point plan on how to complain successfully:

1. Ask for the manager or owner before you start complaining.
2. Don't begin by saying "You've Ruined My Garment" as this instantly puts anyone on the defensive and is unlikely to leave them in the most helpful frame of mind.
3. Explain the problem clearly and calmly and show them what you mean.
4. Listen to their response. If the person is being reasonable assume that they want to sort the problem out.
5. If the manager thinks the problem can be sorted give them a reasonable time to do so (about 2 weeks or so should be sufficient).
6. Let the manager know what you expect from any effort to repair the item and what you expect if it is unsuccessful.
7. If the manager is suggesting that the retailer or manufacturer is to blame ask them to write down the reason so you can take it to the retailer.
8. If offered independent mediation and testing then accept. It means that you may have to pay for a test to be done (usually around £35) but whomever is at fault will have to reimburse you and it is unlikely to be you, unless you have spilt something on your garment (knowingly or unknowingly) or it is simply unavoidable wear and tear.
9. Always get a receipt when you leave an item with a retailer or professional.
10. Don't lose your temper, stay calm so you can listen and react logically.