angular form

 <form [formGroup]="createForm" class="create-form">
            <mat-form-field class="field-full-width">
              <input matInput placeholder="Tytuł reklamacji" formControlName="tytul" #tytul>
            </mat-form-field>
            <mat-form-field class="field-full-width">
              <input matInput placeholder="Data D.M.RRRR" formControlName="data" #data>
            </mat-form-field>
            <mat-form-field class="field-full-width">
              <textarea matInput placeholder="Opis" formControlName="opis" #opis></textarea>
            </mat-form-field>
            <mat-form-field>
                <mat-select placeholder="Priorytet" formControlName="priorytet" #priorytet>
                  <mat-option value="wolny">Wolny</mat-option>
                  <mat-option value="normalny">Normalny</mat-option>
                  <mat-option value="szybki">Szybki</mat-option>
                </mat-select>
            </mat-form-field>
            <mat-divider></mat-divider>
            <br><br>
            <button mat-raised-button color="accent" routerLink="/userpage">Cofnij</button>&nbsp;
            <button type="submit" (click)="addReklam(tytul.value, data.value, opis.value, priorytet.value)" [disabled]="createForm.pristine || createForm.invalid" mat-raised-button color="primary">Dodaj</button>
          </form>
-----------------------------------------TS----------------------------------------

import { Component, OnInit } from '@angular/core';
import { FormGroup, FormBuilder, Validators } from '@angular/forms';
import { Router } from '@angular/router';
import { NewuserService } from 'src/app/newuser.service';
import { MatSnackBar } from '@angular/material';

@Component({
  selector: 'app-addreklamacje',
  templateUrl: './addreklamacje.component.html',
  styleUrls: ['./addreklamacje.component.css']
})
export class AddreklamacjeComponent implements OnInit {

  createForm: FormGroup;

  constructor(private serwis: NewuserService, private fb: FormBuilder, private router: Router, private snackBar: MatSnackBar ) {
    this.createForm = this.fb.group({
      tytul: ['', Validators.required],
      data: ['', Validators.required],
      opis: ['', Validators.required],
      priorytet: ['', Validators.required]
    });
  }

  addReklam(tytul,data,opis,priorytet)
  {
    this.serwis.addReklam(tytul,data,opis,priorytet,this.serwis.uzytkownik[0]._id).subscribe(() => {
      this.snackBar.open('Reklamacja dodana pomyślnie!','OK', {
        duration: 5000
      });
      this.router.navigate(['/userpage']);
    });
  }

  ngOnInit() {
  }

}