Sage Customer Support Tech interview questions

Two preliminary phone calls, one on-site interview with managers. Confirmed with HR by phone and email that role was English language. HR told me to prepare for an interview with two team managers. At interview managers focused on my German language skills and German market. I mentioned a couple of times that I had applied for the English language role. After 20 minutes the team manager said he was trying something new and said I'd be interviewed by a panel of three of the team members. Was left in the meeting room for 10 minutes while they walked around outside looking for the team members (glass windows). One of the team members on the panel gave me a German language skills test. The managers returned after a little more than 10 minutes - barely enough time to introduce ourselves and do the unexpected language test. The team manager asked me if I noticed the the native German speaker on the panel and called it 'introducing a Curve Ball'. Applied for a English language job and got interviewed for a German language role. Was told to prepare for interview with two team managers and had a badly organised three part interview with a one-to-one and panel interview mix. Seemed like a very disorganised support team in a company going through a lot of changes. No follow-up afterwards, even though managers said they'd be in touch in a day and weren't the type of company 'to leave someone waiting for an update'! Otherwise standard interview for a phone/webchat based support job in a call center.