HR just moved me automatically into a non salary sacrifice scheme….

bluenose1

Something similar happened to me a couple of years ago. In those days  I had no idea you had to stay above NMW and had been making contributions well above that for over a year.
Out of the blue they stopped my salary sacrifice, reducing my pay after deductions,  and when I enquired they advised of the NMW rule. 

I had not realised NMW was calculated by days in the month, though looking at the below not sure they do if paid weekly/ monthly. Though am certainly no expert so may be wrong.

https://www.gov.uk/guidance/calculating-the-minimum-wage/working-hours-for-which-the-minimum-wage-must-be-paid#absences-from-work

Calculating salaried workers’ hours - basic annual hours

If a worker only works up to their basic annual hours, calculating the number of hours they have worked in a particular pay reference period is more straightforward. You calculate the number of salaried hours for each pay reference period by dividing the worker’s basic annual hours by the number of payments in the year. For weekly payments, you should divide the basic hours by 52, for fortnightly payments divide by 26, for 4 weekly payments divide by 13, and for monthly payments divide by 12. For any other length of pay reference period, you need to divide 365 days by the number of days in the pay reference period. You then divide the basic hours by this figure.

Miiade

Update…

After writing a strongly worded email to HR saying that I wanted putting in back in the salary sacrifice scheme, they have agreed to do this.

They have said my maximum contribution is 12.45% (£220 I think) a month. I have had to fill in a new form but it looks like it is getting sorted.