I got called the r word on the phone by a recruiter and it's really upset me

I got a call this morning, from a job I don't remember applying to and I must have sounded audibly confused as he said 'no need to be rude young lady' and when I told him I'm not a lady, he responded 'i can tell by your voice. So what are you then, an r word?'. I didn't respond and he hung up. I've contacted the company about this because obviously it's wrong but it's really upset me and I'm shaken. Transphobia and ableism to start my day! Lucky me 🙃