Ericaceous compost (Mosspark, Glasgow G52)

Just looking for a bit to fill a pot as I accidentally bought a camellia plant without realising it needed ericaceous. I don't want to buy a big bag just for a wee pot so hopefully someone has some they can spare. I can't drive so anywhere around Mosspark or Cardonald that I could reach on my bike would be fab. Happy to repay in cuttings, come spring 🌿