Union Riester-Depot (Raiffeisenbank) – carry allowances with you or finally reallocate them to WEBN?

Hello everyone! Another savings bank story, just the same in blue/orange: From the Raiffeisenbank. I completed a Union Riester depot there in 2016, when I was still in training. At the time, the bank employee just sounded very nice and trustworthy - today I'm no longer sure whether that was a wise investment. The performance is +40% in 10 years, so disappointing. There were initially allowances. But not anymore because I am myself