Was due a 60,000 mile and $1200 refund for a flight not taken, miles put back in my account. Money was not after calling, I was told money would be refunded to my AX acct. called several day later, told it was. AX said it was not. I recalled, after long wait, told error occured and really not credited to my AX BUT would do so at once, Called today told money was in my AX account, not so. Asked for supervisor refused to assist or give me number of someone higher up said according to their records money was given to AXI asked to what account so I could douible check, Informed I could not get that information. I am out $1200, which United said I am entitled to but can not or will not tell me where it went. Frustrated How do I get assistance? any advice or words of wisdom?