What is this pill? - Small round peach orange coloured pill with QT on one side and a chevron?

You are obviously in the UK, if so the pill is;

Each peach-coloured, film-coated, round, biconvex tablet, with "QT" on one side and a logo on the other, contains quetiapine fumarate equivalent to 25 mg of quetiapine.

From Drugs.com:

Quetiapine is used to treat schizophrenia in adults and children who are at least 13 years old. It is also used alone or with with divalproex sodium sodium sodium or lithium to treat episodes of mania (frenzied, abnormally excited or irritated mood) or depression in patients with bipolar disorder (manic depressive disorder; a disease that causes episodes of depression, episodes of mania, and other abnormal moods).

In addition, quetiapine is used with other medications to prevent episodes of depression in patients with bipolar disorder.

Quetiapine extended release is also used alone to treat manic episodes in children at least 10 years old with bipolar disorder.

Quetiapine extended release is used in combination with antidepressant medications to treat major depressive disorder in adults.
Quetiapine tablets may be used as part of a treatment program to treat bipolar disorder and schizophrenia in children and teenagers.
Quetiapine belongs to class of medications called atypical antipsychotics. It works by changing the activity of certain natural substances in the brain.

More info: https://www.drugs.com/quetiapine.html

With the info you've given nothing comes up on this pill identifier or another one I have.