Thank you for your kind and good work about the playtomic plugin. I used it, and it were perfect in side of C2. Unfortunately the Playtomic servers are not reliable, I found tons of questions about it in the Playtomic's community... no one understands what is happening.
You told, that you do not use this anymore. Could you help us to find an alternate solution for this kind of functionality?
I'm sure that you know something, it could be very kind if you can share your experience! :)