Is it normal to be instructed to inject differently then what the pharmacy says?

Just started T today. I was instructed to inject it subcutaneously, but the package says for intramuscular use only. My provider told me to follow what they say and warned the package instructions may be different, but I’m just a little nervous since the package makes it clear to take it only a certain way. Is this normal, do other people take it subcutaneously?