3 payment split issue

Can't believe I have been trying to get assistance on a restricted account on the 3 split payments to 1 for over 5 hours now. Sent the email advised to send and also the agent "Yonela from Consumer Support" is VERY SLOW on responses on the chat option. I have to wait 20 to 30 minutes for her to reply back to me not with a tangible answer at that . Chat is supposed to be prompt but not this one. I have been using the account for years and I never had to go through all this