Try these addnodes:

addnode=116.14.84.103:32427
addnode=136.61.227.246:32427
addnode=37.97.242.80:32427
addnode=45.77.155.37:32427
addnode=46.98.235.86:32427
addnode=79.137.71.57:32427
addnode=81.61.115.212:32427
addnode=86.157.181.126:32427
addnode=87.228.35.65:32427
addnode=94.156.144.211:32427
addnode=94.181.46.32:32427
addnode=98.168.15.29:32427

Make a note file & cut and paste the above.  Change the file to:  marblecoin.conf or whatever your marblecoin file calls itself.  The file may be found in \roaming\  on your c drive unless you assigned it elsewhere.

Once the conf file is inside the correct folder with the correct name restart the marble program.  It should start to sync.  If not there are other things you can add to the conf file to assist.

For example:

rpcuser= username
rpcpassword= x
recallwip=127.0.0.1
server=1
daemon=1
listen=1
Paste the above before the first addnode.

You are right! Vsync team have nothing to do with coinexchange.io.
After latest wallet version, all things have worked smoothly, both staking and masternode operational procedures.
Therefore, the current issues in coinexchange.io are totally from their platform, not from Vsync team and Vsync wallets, network.
The exchange should handle their issues by themselves, without charges.

After contribution you need to register transaction. Every registration has the status "under review". They need to approve them manually. It can takes some more days to do it all. You don't have to worry. It will be ok.

You should just get a VPS they are not that expensive.

Wrote a support to cryptopia they are yet to answer.
we have funds sufficient for exchange listings.
Yes communicated with cryptopia

Not a scam as TRM investors are receiving daily payouts. TRM2 payout not started yet. I am invested in TRM, TRM2 and also Envion. From my experience I can say that TRM is much better than ENVION.