I have a thin, very fine yellow gold snake chain, like the one pictured below:

https://www.creativeglassguild.co.uk/catalog/images/sterling.silver.snake.chain.jewellery.jpg

Recently, I caught it on my clothing and some of the links are not missing out of the chain, making it look jagged in that part.

Can I get it repaired? If so where in London?

Thanks