My issue is not necessarily with the OP sending spam PMs with referral links. My issue is with the OP promising to pay someone 1 LTC in exchange for signing up via his referral link, the victim accepting the offer by signing up via the OP's referral link, and the OP not following through on his promise.
If op kept his/her words regarding the 1ltc commission then the case would not arise. So, the first part and important part is that so-called 1LTC. And then arose the second part about unsolicited pm. If unsolicited pm would be the first part then the account of the OP would be banned.