One of my IRA trustees did not, and maintains that it does not have to, issue a Form 5498 to me.  Thus although I believe I can calculate the RMD I must take on or before December 31, 2019, I am frustrated about the trustee's position.  How is the IRS to know if I have complied with the RMD rules, if it does not receive a 5498 from ALL the trustee(s)?