I have never dealt with BTC,but judging by what they say that it should rise, I would like to try to buy on your terms
This statement have make you a target of crypto scammer and i will advise you not to do the business through telegram especially with user who's not among DT members. You have two best option
1) Answer owlcatz question while you edit the OP page and add your terms of payment (PayPal, wire, WU etc).
2) Contact people (
alex2012 ) who have been doing crypto exchange for awhile on this forum