Ionic AlertMessage Double Async Requests

Question

My application have an AllertMessage pattern, so it's a very delicate component. The issue is that from time to time It makes double requests, and I think there's got to do something all of the async functions.

async create(message?: string) {
    const options: {} = {
        header: 'Informe a pulseira de acesso.',
        subHeader: message,
        backdropDismiss: false,
        cssClass: 'alert-bracelet',
        mode: 'ios',
        inputs: [
          {
            name: 'bracelet',
            type: 'password',
            placeholder: 'Código da pulseira',
            cssClass: 'bold font-size'
          }
        ],
        buttons: [
          {
            text: 'Cancelar',
            cssClass: 'btn-cancel bold font-size',
            handler: () => {
                this.observableUtilService.sendMessageBracelet(false);
                this.alertController.dismiss();
            }
          }, {
            text: 'Confirmar',
            cssClass: 'btn-confirm bold font-size',
            handler: async (data) => {
                this.confirmBracelet(data.bracelet).then(
                    (d2) => this.observableUtilService.sendMessageBracelet(d2.user),
                    (error) => this.observableUtilService.sendMessageBracelet(false));
                this.alertController.dismiss();
            }
          }
        ]
      };
      const alert = await this.alertController.create(options);
      return await alert.present().then(() => this.customAlertBracelet());
}


private async confirmBracelet(bracelet: string): Promise<any> {
        const myPromisse = new Promise((resolve, reject) => {
            this.userService.bracelet(bracelet).subscribe((data) => resolve({user: data, success: true}),
              async () => {
                const toast = await this.easyMarineToast.create('Pulseira inválida', 'danger');
                toast.present();
                reject(false);
            });
        });
        return myPromisse;
    }

It basically receives a code (ID) and checks in an api, and if it is true than the service that called the AllertMessage will fullfill the request.