my beko cooker is 10months old and oven is starting to melt?

I bought my beko electric cooker 10months ago from argos last week i was cooking in it when it smelt like it was burning a fire opened it thick smoke poured out of it and it was so bad i switched it off. Opened it yesterday to check it snd oven floor ay bottom ther was a raised circle of what looked like black plastic could this be the enamel and why is this hapoening? I have rang beko someone ahould be coming out this week but im worried i could of been poisoned by this plastic n the fumes from it in my food