Anyone else pissed right off with UNIVERSAL CREDIT!!???

Actually loosing the will to live right now! Got till end of next month.. they took off my take home pay. Taken months to sort my maternity finally they sorted it but I went in to change my bank details and the lady said oh your MA isnt on your claim ?? So she photo copied it put it on now I’m only entitled to £30 😪 Why do they not explain any of this ... il be down my local jc tomorrow putting in a major complaint! I’ve been 2 3 months already with nothing while waiting for it to all go through!