Transfer Market Sanction for sniping extinct cards

After spending £200+ on packs and my best card being bloody Barella I turned my hand to trading and sniping extinct cards, in particular the Kopenhagen cards for the new SBC, people were ‘lazy selling’ at 700 coins and they were selling instantly for 10k. I managed to bag around 10 in the day, some for a little more than the 700 coins but overall made around 50/60k in the day from 10am til 10pm. Then at 10:35pm I got kicked out of the account and then couldn’t get access to the transfer market. I haven’t had an email or anything stating why I’ve been banned, I heard it was risky sniping low rated/low value cards and selling for max price so I thought I was smart by putting 100 coins under max but still seem to have been caught… I guess I’m not so smart. 

Wondering how long this ‘sanction’ lasts as I’ve played ultimate team since the first ever one and I’ve never known to be banned for selling max price! Thankfully Call of Duty comes out on Friday so at least I have a pass time while this situation hopefully gets sorted? I have a pretty insane team, Hansen ect & drop 16+ wins on Champs and make decent money from that so I can’t be bothered starting all over again. I’ve already put 226 hours into the game!