I don't know of anyone that's set up a petition for this but I'm sure there was a thread on here quite a while back discussing ways that a ramp might possibly work.

Can anyone remember what this thread was titled?

I agree with what you've said Francesca but I don't think a petition (regardless of how many signatures you have) will help achieve this purely because Lewisham Council are on a very tight budget & are cutting back on core services (such as libraries & youth centres, which I don't agree with) to make savings, but it's still worth a try.

If you want to set up a petition you can create one on change.org or a similar site as an online petition & for maximum local coverage ask shops to have a paper copy for customers to see. This is what myself & a local resident done when Morrisons proposed to open a branch on London Rd where M & Co is.

If you go ahead I'm happy to have a paper copy at my shop for you and I'm sure a few others will be too, best of luck with this.