This aircraft flew the Thessaloniki flight from Gatwick this morning. Alarm bells started with observation no divider in cabin. So while the breakfast service started already CC were in and out of lockers above my head in row 2 but front row on this aircraft even to extent that one actually stood on my seat to get to the overhead when I was seated. Is this a new enhancement for CE pax? Additionally on breakfast finishing the front toilet was a free for all so again, was bumped while seated regularly. The matter was brought to the attention of CSD who had failed to control the situation. When prompted to make announcement this was carried out but it was all to late. As the CE was actually busy incredible as it is but CE pax had to Q to get to the loo. It was all poorly managed and failed to resemble a CE experience that surely BA have not stopped this low, but the final nail was yet to be hammered, first time ever for me, champagne run out! Pathetic all round.