Crawley have already rejected offers from two other clubs and Evans has not ruled out an improved bid from Swindon.
He told his club's official website: "I can confirm that a media report circulating in Wiltshire on Thursday morning is accurate in that Swindon Town manager Danny Wilson has been talking to me for a few days now in relation to our young striker Charlie Ademeno.
"Danny put a proposal to me for Charlie but that was rejected after I consulted with my bosses. Danny and myself have spoken a number of times since and its now at the point that I must now be on speed dial on Danny Wilson's mobile phone.
"On a serious note, Danny has confirmed he will be back to me after he has had time to discuss this further with his chairman; whether this leads to an increased offer is not for me to guess.
"There is no doubt that Swindon Town fancy the boy but then again it is no surprise given his talent. We are certainly not being greedy with our valuation of the boy and any offer that we receive will get our full consideration."